The Willa Slip On Flat features:

• Upper: Leather, Velvet or Printed Calf-Hair.
• Footbed Lining: Removable PU Covered EVA.
• Outsole: Durable Rubber.
• Heel Height: 0.57".
• Vio-Motion Technology is designed to hug your arches and support your feet in comfort. Vionic sandals' built-in orthotic is shown to be effective in helping to treat heel pain (plantar fasciitis).
• Received APMA Seal of Acceptance.